 regrd         [address] [size]
 regwt         [address] [data] [mask bit]
 i2crd         [ch] [spi-data]
 i2cwt         [ch] [spi-data]
 flsrd         [address] [size]
 flswt         [address] [data]
 vmcrd         [address] [size]
 vmcwt         [address] [data]
 signature     [control] [file]
